Biological Classification MCQ Solved Paper for SBI Clerk
Thursday 9th of March 2023
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1. Which of the following is the correct sequence of three steps in the sexual cycle of fungi?
A. Mitosis -> Meiosis -> Fertilization
B. Plasmogamy -> Karyogamy -> Meiosis
C. Mitosis -> Plasmogamy -> Karyogamy
D. Karyogamy -> Plasmogamy -> Meiosis
Answer : B
A. Mitosis -> Meiosis -> Fertilization
B. Plasmogamy -> Karyogamy -> Meiosis
C. Mitosis -> Plasmogamy -> Karyogamy
D. Karyogamy -> Plasmogamy -> Meiosis
Answer : B
2. The subunit of capsid is called
A. core
B. nucleotide
C. amino acid
D. capsomere
Answer : D
A. core
B. nucleotide
C. amino acid
D. capsomere
Answer : D
3. Which of the following statement(s) is/are correct about ascomycetes ?
(i) Neurospora, which is used in biochemical and genetic work is a member of this class.
(ii) They are mostly multicellular, e.g., Yeast, or rarely unicellular, e.g., Penicillium.
(iii) They are saprophytic, decomposers, parasitic or coprophilous.
(iv) Some examples are Aspergillus, Claviceps and Neurospora.
A. Both (i) and (ii)
B. Only (ii)
C. (i), (iii) and (iv)
D. All of these
Answer : C
(i) Neurospora, which is used in biochemical and genetic work is a member of this class.
(ii) They are mostly multicellular, e.g., Yeast, or rarely unicellular, e.g., Penicillium.
(iii) They are saprophytic, decomposers, parasitic or coprophilous.
(iv) Some examples are Aspergillus, Claviceps and Neurospora.
A. Both (i) and (ii)
B. Only (ii)
C. (i), (iii) and (iv)
D. All of these
Answer : C
4. Which of the following pair is not correctly matched ?
A. Anabaena Cyanobacteria
B. Amoeba Protozoa
C. Gonyaulax Dinoflagellates
D. Albugo Chrysophytes
Answer : D
A. Anabaena Cyanobacteria
B. Amoeba Protozoa
C. Gonyaulax Dinoflagellates
D. Albugo Chrysophytes
Answer : D
5. Select the correct match from the given option.
A. Occurrence of dikaryotic stage - ascomycetes and basidiomycetes.
B. Saprophytes - They are autotrophic and absorb soluble organic matter from dead substrates.
C. Vegetative mean of reproduction in fungi - fragmentation, budding and sporangiophores.
D. Steps involved in asexual cycle of fungi - plasmogamy, karyogamy and meiosis in zygote resulting in haploid spores.
Answer : A
A. Occurrence of dikaryotic stage - ascomycetes and basidiomycetes.
B. Saprophytes - They are autotrophic and absorb soluble organic matter from dead substrates.
C. Vegetative mean of reproduction in fungi - fragmentation, budding and sporangiophores.
D. Steps involved in asexual cycle of fungi - plasmogamy, karyogamy and meiosis in zygote resulting in haploid spores.
Answer : A
6. Match column-I (Characters/feature) with column-II (examples) and choose the correct option.
A. A III; B II; C I; D IV
B. A II; B III; C I; D IV
C. A II; B III; C IV; D I
D. A II; B IV; C III; D I
Answer : C
| Column-I | Column-II |
|---|---|
| (Characters/features) | (Examples) |
| A. Red dinoflagellates | I. Rhizopus |
| B. Unicellular fungi used to | II. Gonyaulax make bread and beer |
| C. Source of antibiotics | III. Yeast |
| D. Bread mould | IV. Penicillium |
A. A III; B II; C I; D IV
B. A II; B III; C I; D IV
C. A II; B III; C IV; D I
D. A II; B IV; C III; D I
Answer : C
7. Read the following statements and answer the question given below
(i) They are saprophytic protists.
(ii) Under suitable conditions, they form an aggregation (called plasmodium) which may grow and spread over several feet.
(iii) During unfavourable conditions, the plasmodium differentiates and forms fruiting bodies bearing spores at their tips.
Which of the following class of protists is being described by the above statements ?
A. Euglenoids
B. Dinoflagellates
C. Slime moulds
D. Protozoans
Answer : C
(i) They are saprophytic protists.
(ii) Under suitable conditions, they form an aggregation (called plasmodium) which may grow and spread over several feet.
(iii) During unfavourable conditions, the plasmodium differentiates and forms fruiting bodies bearing spores at their tips.
Which of the following class of protists is being described by the above statements ?
A. Euglenoids
B. Dinoflagellates
C. Slime moulds
D. Protozoans
Answer : C
8. Ustilago causes plant diseases (called smuts) because
A. they parasitize on cereals.
B. they lack mycelium.
C. they develop sooty masses of spores.
D. their affected parts becomes completely black.
Answer : D
A. they parasitize on cereals.
B. they lack mycelium.
C. they develop sooty masses of spores.
D. their affected parts becomes completely black.
Answer : D
9. The given figure shows some labelled structure as A, B, C and D. In which structure the protein coat that encloses the nucleic acid is present?
A. A
B. B
C. C sheath
D. D tail fibres
Answer : A
A. A
B. B
C. C sheath
D. D tail fibres
Answer : A
10. Which of the following is an example of amoeboid protozoans ?
A. Trypanosoma
B. Paramecium
C. Gonyaulax
D. Entamoeba
Answer : D
A. Trypanosoma
B. Paramecium
C. Gonyaulax
D. Entamoeba
Answer : D
11. Consider the following statements with respect to characteristic features of the kingdom.
(i) In animalia, the mode of nutrition is autotrophic.
(ii) In monera, the nuclear membrane is present.
(iii) In protista, the cell type is prokaryotic.
(iv) In plantae, the cell wall is present.
Of the above statements, which one is correct ?
A. (i) only
B. (ii) only
C. (iii) only
D. (iv) only
Answer : D
(i) In animalia, the mode of nutrition is autotrophic.
(ii) In monera, the nuclear membrane is present.
(iii) In protista, the cell type is prokaryotic.
(iv) In plantae, the cell wall is present.
Of the above statements, which one is correct ?
A. (i) only
B. (ii) only
C. (iii) only
D. (iv) only
Answer : D
12. Which of the following statements regarding cyanobacteria is incorrect?
A. It is also called blue green algae.
B. They are chemosynthetic autotrophs.
C. It forms blooms in polluted water bodies.
D. It is unicellular, colonial or filamentous, marine or terrestrial bacteria.
Answer : B
A. It is also called blue green algae.
B. They are chemosynthetic autotrophs.
C. It forms blooms in polluted water bodies.
D. It is unicellular, colonial or filamentous, marine or terrestrial bacteria.
Answer : B
13. Which of the following statement is correct for both bluegreen algae and bacteria ?
A. Both show anaerobic respiration.
B. Both have chlorophyll pigment.
C. Both are devoid of true nucleus.
D. None of the above
Answer : C
A. Both show anaerobic respiration.
B. Both have chlorophyll pigment.
C. Both are devoid of true nucleus.
D. None of the above
Answer : C
14. Choose the correct statements (i v) regarding mycoplasma
(i) Mycoplasma has no cell wall.
(ii) Mycoplasma is the smallest living organism.
(iii) Mycoplasma cannot survive without O2.
(iv) Mycoplasma are pathogenic in animals and plants.
(v) A sort of sexual reproduction occurs in bacterium by adopting a primitive DNA transfer from one bacterium to the other.
A. Only (iii)
B. (i), (iii) and (v)
C. (i), (ii), (iv), and (v)
D. All of the above
Answer : C
(i) Mycoplasma has no cell wall.
(ii) Mycoplasma is the smallest living organism.
(iii) Mycoplasma cannot survive without O2.
(iv) Mycoplasma are pathogenic in animals and plants.
(v) A sort of sexual reproduction occurs in bacterium by adopting a primitive DNA transfer from one bacterium to the other.
A. Only (iii)
B. (i), (iii) and (v)
C. (i), (ii), (iv), and (v)
D. All of the above
Answer : C
15. Which of the following processes involved in the reproduction of protists ?
A. Binary fission and budding
B. Cell fusion and zygote formation
C. Spore formation and cyst formation
D. All of the above
Answer : D
A. Binary fission and budding
B. Cell fusion and zygote formation
C. Spore formation and cyst formation
D. All of the above
Answer : D
16. Bacteria are found to be primitive organisms because they
A. are small, microscopic which are not seen with naked eye.
B. cause serious diseases to human being, domesticated animals and crop plants.
C. produce endospores which are very resistant to adverse conditions.
. possess incipient nucleus and show amitotic division.
Answer : D
A. are small, microscopic which are not seen with naked eye.
B. cause serious diseases to human being, domesticated animals and crop plants.
C. produce endospores which are very resistant to adverse conditions.
. possess incipient nucleus and show amitotic division.
Answer : D
17. Bacteria lack alternation of generation because there is
A. neither syngamy nor reduction division.
B. no distinct chromosomes.
C. no conjugation.
D. no exchange of genetic material.
Answer : A
A. neither syngamy nor reduction division.
B. no distinct chromosomes.
C. no conjugation.
D. no exchange of genetic material.
Answer : A
18. Match the type of protozoans given in column-I with their examples given in column-II and choose the correct option.
A. A I; B III; C IV; D II
B. A III; B I; C II; D IV
C. A III; B I; C IV; D II
D. A III; B IV; C I; D II
Answer : C
| Column-I | Column-II |
|---|---|
| (Type of Protozoans) | (Examples) |
| A. Amoeboid protozoans | I. Paramecium |
| B. Ciliated protozoans | II. Plasmodium |
| C. Flagellated protozoans | III. Amoeba |
| D. Sporozoans | IV. Trypanosoma |
A. A I; B III; C IV; D II
B. A III; B I; C II; D IV
C. A III; B I; C IV; D II
D. A III; B IV; C I; D II
Answer : C
19. A specimen of fungus is brought by a student for identification. Upon close examination, he discovered that its hyphae are completely septate and it has gills on the underside of the pileus. To which fungal group does it most likely belong ?
A. Basidiomycetes
B. Zygomycetes
C. Ascomycetes
D. Chytrids
Answer : A
A. Basidiomycetes
B. Zygomycetes
C. Ascomycetes
D. Chytrids
Answer : A
20. Which of the following is/are example(s) of deuteromycetes?
A. Alternaria
B. Colletotrichum
C. Trichoderma
D. All of these
Answer : D
A. Alternaria
B. Colletotrichum
C. Trichoderma
D. All of these
Answer : D
21. Protista includes
A. unicellular eukaryotes with well-defined nucleus only.
B. unicellular prokaryotes with membrane bound organelles.
C. unicellular eukaryotes with well-defined nucleus and membrane bound organelles.
D. both unicellular and multicellular eukaryotes with welldefined nucleus and membrane bound organelles.
Answer : C
A. unicellular eukaryotes with well-defined nucleus only.
B. unicellular prokaryotes with membrane bound organelles.
C. unicellular eukaryotes with well-defined nucleus and membrane bound organelles.
D. both unicellular and multicellular eukaryotes with welldefined nucleus and membrane bound organelles.
Answer : C
22. In some viruses, RNA is present instead of DNA indicating that
A. their nucleic acid must combine with host DNA before replication.
B. they cannot replicate.
C. there is no hereditary information.
D. RNA can transfer heredity material.
Answer : D
A. their nucleic acid must combine with host DNA before replication.
B. they cannot replicate.
C. there is no hereditary information.
D. RNA can transfer heredity material.
Answer : D
23. Match the class of fungi given in column I with their examples given in column II and choose the correct option
A. A IV, B III, C I, D II
B. A II, B III, C IV, D I
C. A IV, B I, C II, D III
D. A III, B IV, C II, D I
Answer : B
| Column-I | Column-II |
|---|---|
| (Class of fungi) | (Examples) |
| A. Ascomycetes | I. Rhizopus |
| B. Basidiomycetes | II. Penicillium |
| C. Deuteromycetes | III. Ustilago |
| D. Phycomycetes | IV. Alternaria |
A. A IV, B III, C I, D II
B. A II, B III, C IV, D I
C. A IV, B I, C II, D III
D. A III, B IV, C II, D I
Answer : B
24. Match the scientists given in column I with their discovery given in column II and choose the correct option.
A. A IV, B III, C II, D I
B. A III, B IV, C II, D I
C. A II, B III, C IV, D I
D. A I, B II, C III, D IV
Answer : A
| Column-I | Column-II |
|---|---|
| (Scientists) | (Discovery) |
| A. Ernst Mayr | I. Discovered Viroids |
| B. Whittaker | II. Gave the name virus |
| C. Pasteur | III. Proposed five kingdom classification |
| D. Diener | IV. Darwin of the 20th century |
A. A IV, B III, C II, D I
B. A III, B IV, C II, D I
C. A II, B III, C IV, D I
D. A I, B II, C III, D IV
Answer : A
25. Which of the following are the characters of dinoflagellates?
(i) They are planktonic golden yellow algae with soap box like structure.
(ii) They are marine red biflagellated protista.
(iii) They appear yellow, green, brown, blue and red in colour.
(iv) They are biflagellated organisms with pellicle.
(v) They are saprophytic (or) parasitic unicellular forms.
A. (ii) and (iii)
B. (ii) and (v)
C. (i), (ii) and (iii)
D. (ii), (iv) and (v)
Answer : C
(i) They are planktonic golden yellow algae with soap box like structure.
(ii) They are marine red biflagellated protista.
(iii) They appear yellow, green, brown, blue and red in colour.
(iv) They are biflagellated organisms with pellicle.
(v) They are saprophytic (or) parasitic unicellular forms.
A. (ii) and (iii)
B. (ii) and (v)
C. (i), (ii) and (iii)
D. (ii), (iv) and (v)
Answer : C
26. Bacteria and yeast are similar in all the following features except that
A. both are unicellular.
B. both are prokaryotes.
C. both are capable of causing fermentation.
D. both produce spores.
Answer : B
A. both are unicellular.
B. both are prokaryotes.
C. both are capable of causing fermentation.
D. both produce spores.
Answer : B
27. Which of the following pairs comes under the group chrysophytes ?
A. Diatoms and Euglena
B. Euglena and Trypanosoma
C. Diatoms and Desmids
D. Gonyaulax and Desmids
Answer : C
A. Diatoms and Euglena
B. Euglena and Trypanosoma
C. Diatoms and Desmids
D. Gonyaulax and Desmids
Answer : C
28. Match column I with column II and choose the correct option.
A. A-(i) B-(ii) C-(iii) D-(iv) E-(v)
B. A-(iii) B-(v) C-(ii) D-(iv) E-(i)
C. A-(iii) B-(i) C-(v) D-(ii) E-(iv)
D. A-(v) B-(iv) C-(iii) D-(i) E-(ii)
Answer : D
| Column I | Column II |
|---|---|
| A. Mycoplasma | (i) Nitrogen fixing cells |
| B. Decomposers | (ii) Blue green algae |
| C. Methanogens | (iii) Production of methane |
| D. Heterocysts | (iv) Most abundant heterotrophs |
| E. Cyanobacteria | (v) Pathogenic in plants and animals |
A. A-(i) B-(ii) C-(iii) D-(iv) E-(v)
B. A-(iii) B-(v) C-(ii) D-(iv) E-(i)
C. A-(iii) B-(i) C-(v) D-(ii) E-(iv)
D. A-(v) B-(iv) C-(iii) D-(i) E-(ii)
Answer : D
29. Which of the following group of kingdom protista is being described by the statements given below ?
(i) This group includes diatoms and golden algae.
(ii) They are microscopic and float passively in water currents (plankton).
(iii) Most of them are photosynthetic.
(iv) They have deposits in their habitat; this accumulation over billion of years is referred to as diatomaceous earth.
A. Dinoflagellates
B. Chrysophytes
C. Euglenoids
D. Slime moulds
Answer : B
(i) This group includes diatoms and golden algae.
(ii) They are microscopic and float passively in water currents (plankton).
(iii) Most of them are photosynthetic.
(iv) They have deposits in their habitat; this accumulation over billion of years is referred to as diatomaceous earth.
A. Dinoflagellates
B. Chrysophytes
C. Euglenoids
D. Slime moulds
Answer : B
30. The symbiotic association of fungi and algae is called
A. lichen
B. mycorrhiza
C. rhizome
D. endomycorrhiza
Answer : A
A. lichen
B. mycorrhiza
C. rhizome
D. endomycorrhiza
Answer : A
31. Dikaryon formation is the characteristic feature of
A. ascomycetes and basidiomycetes.
B. phycomycetes and basidiomycetes.
C. ascomycets and phycomycetes.
D. phycomycetes and zygomycetes.
Answer : A
A. ascomycetes and basidiomycetes.
B. phycomycetes and basidiomycetes.
C. ascomycets and phycomycetes.
D. phycomycetes and zygomycetes.
Answer : A
32. Which of the following statement(s) is/are correct ?
(i) Reproduction in fungi can take place by vegetative means fragmentation, fission and budding.
(ii) Fusion of two nuclei is called plasmogamy.
(iii) Fusion of protoplasms between two motile or nonmotile gametes is called karyogamy.
(iv) Meiosis in zygote results in diploid spores.
A. Only (i)
B. Both (ii) and (iii)
C. (ii), (iii) and (iv)
D. All of these
Answer : A
(i) Reproduction in fungi can take place by vegetative means fragmentation, fission and budding.
(ii) Fusion of two nuclei is called plasmogamy.
(iii) Fusion of protoplasms between two motile or nonmotile gametes is called karyogamy.
(iv) Meiosis in zygote results in diploid spores.
A. Only (i)
B. Both (ii) and (iii)
C. (ii), (iii) and (iv)
D. All of these
Answer : A
33. Match the characters given in column I with their examples given in column II.
A. A-(v) B-(ii) C-(iv) D-(iii) E-(i)
B. A-(iii) B-(i) C-(iv) D-(ii) E-(v)
C. A-(ii) B-(i) C-(iii) D-(v) E-(iv)
D. A-(iii) B-(ii) C-(iv) D-(i) E-(v)
Answer : A
| Column I | Column II |
|---|---|
| A. Long slender thread | (i) Lichen like structures |
| B. Association of fungi with | (ii) Mycorrhiza roots of higher plants |
| C. Parasitic fungi on mustard | (iii) Neurospora |
| D. Fungi extensively used in | (iv) Albugo biochemical and genetic work |
| E. An association in which | (v) Hyphae algal component is called phycobiont |
A. A-(v) B-(ii) C-(iv) D-(iii) E-(i)
B. A-(iii) B-(i) C-(iv) D-(ii) E-(v)
C. A-(ii) B-(i) C-(iii) D-(v) E-(iv)
D. A-(iii) B-(ii) C-(iv) D-(i) E-(v)
Answer : A
34. Refer the given figure of bacteria cell and Nostoc and choose the option which shows correct label for the structure marked as A, B, C, D and E ?
A. A – Cell wall, B – Cell membrane, C – Heterocyst, D – DNA, E – Mucilagenous sheath
B. A – Cell wall, B – Cell membrane, C – DNA, D – Heterocyst, E – Mucilagenous sheath
C. A – Mucilagenous sheath, B – Cell membrane, C – DNA, D – Heterocyst, E – Cell wall
D. A – Cell membrane, B – Cell wall, C – DNA, D – Heterocyst, E – Mucilagenous sheath
Answer : B
A. A – Cell wall, B – Cell membrane, C – Heterocyst, D – DNA, E – Mucilagenous sheath
B. A – Cell wall, B – Cell membrane, C – DNA, D – Heterocyst, E – Mucilagenous sheath
C. A – Mucilagenous sheath, B – Cell membrane, C – DNA, D – Heterocyst, E – Cell wall
D. A – Cell membrane, B – Cell wall, C – DNA, D – Heterocyst, E – Mucilagenous sheath
Answer : B
35. Which class of fungi lacks sex organs but the process of plasmogamy is brought about by fusion of two vegetative or somatic cells of different strains or genotypes?
A. Sac fungi
B. Bracket fungi
C. Imperfect fungi
D. Phycomycetes
Answer : B
A. Sac fungi
B. Bracket fungi
C. Imperfect fungi
D. Phycomycetes
Answer : B
36. Protozons are not included in kingdom animalia because they are
A. mostly asymmetrical.
B. unicellular eukaryotes.
C. heterotrophic in nature.
D. multicellular prokaryotes.
Answer : B
A. mostly asymmetrical.
B. unicellular eukaryotes.
C. heterotrophic in nature.
D. multicellular prokaryotes.
Answer : B
37. Match column I (Kingdom) with column II (Class) and select the correct options
A. A IV, B III, C II, D I
B. A I, B II, C III, D IV
C. A III, B IV, C II, D I
D. A IV, B II, C III, D I
Answer : A
| Column-I | Column-II |
|---|---|
| (Kingdom) | (Class) |
| A. Plantae | I. Archaebacteria |
| B. Fungi | II. Euglenoids |
| C. Protista | III. Phycomycetes |
| D. Monera | IV. Algae |
A. A IV, B III, C II, D I
B. A I, B II, C III, D IV
C. A III, B IV, C II, D I
D. A IV, B II, C III, D I
Answer : A
38. The figure given below shows the structure of a bacteriophage. Identify its parts labelled as A, B, C and D.
A. A - Tail fibres B - Head C - Sheath D - Collar
B. A - Sheath B - Collar C - Head D - Tail fibres
C. A - Head B - Sheath C - Collar D - Tail fibres
D. A - Collar B - Tail fibres C - Head D - Sheath
Answer : C
A. A - Tail fibres B - Head C - Sheath D - Collar
B. A - Sheath B - Collar C - Head D - Tail fibres
C. A - Head B - Sheath C - Collar D - Tail fibres
D. A - Collar B - Tail fibres C - Head D - Sheath
Answer : C
39. Which one of the following statement is correct for archaea?
A. Archaea resemble eukaryotes in all respects.
B. Archaea have some novel features that are absent in other prokaryotes and eukaryotes.
C. Archaea completely differ from both prokaryotes and eukaryotes.
D. Archaea completely differ from prokaryotes.
Answer : B
A. Archaea resemble eukaryotes in all respects.
B. Archaea have some novel features that are absent in other prokaryotes and eukaryotes.
C. Archaea completely differ from both prokaryotes and eukaryotes.
D. Archaea completely differ from prokaryotes.
Answer : B
40. The given statements are some characters of a particular group of Kingdom protista.
(i) Most of them are fresh water organisms found in standing water.
(ii) They have a protein rich layer (called pellicle) which makes their body flexible.
(iii) They have two flagella, a short and a long one.
(iv) Though they are photosynthetic in the presence of sunlight, but in the absence of sunlight they behave like heterotrophs by predating on other smaller organisms.
Identify the correct group on the basis of these characters.
A. Protozoans
B. Chrysophytes
C. Slime moulds
D. Euglenoids
Answer : D
(i) Most of them are fresh water organisms found in standing water.
(ii) They have a protein rich layer (called pellicle) which makes their body flexible.
(iii) They have two flagella, a short and a long one.
(iv) Though they are photosynthetic in the presence of sunlight, but in the absence of sunlight they behave like heterotrophs by predating on other smaller organisms.
Identify the correct group on the basis of these characters.
A. Protozoans
B. Chrysophytes
C. Slime moulds
D. Euglenoids
Answer : D
41. Chemosynthetic autotrophic bacteria are named so because
A. they oxidize various inorganic substances such as nitrates, nitrites and ammonia and use the released energy for their ATP production.
B. they oxidize various organic substances and use the released energy for their ATP production.
C. both (a) and (b)
D. none of these
Answer : A
A. they oxidize various inorganic substances such as nitrates, nitrites and ammonia and use the released energy for their ATP production.
B. they oxidize various organic substances and use the released energy for their ATP production.
C. both (a) and (b)
D. none of these
Answer : A
42. A fungus contains cells with two nuclei from different genomes. The nuclei do not fuse but divide independently and simultaneously as new cells are formed. This fungus belongs to
A. phycomycetes
B. zygomycetes
C. deuteromycetes
D. basidiomycetes
Answer : D
A. phycomycetes
B. zygomycetes
C. deuteromycetes
D. basidiomycetes
Answer : D
43. How many bacteria are produced in four hours if a bacterium divides once in half an hour ?
A. 8
B. 64
C. 16
D. 256
Answer : D
A. 8
B. 64
C. 16
D. 256
Answer : D
44. Which one of the following is a characteristic feature of chrysophytes?
A. They are parasitic forms which cause diseases in animals.
B. They have a protein rich layer called pellicle.
C. They have indestructible wall layer deposited with silica.
D. They are commonly called dinoflagellates.
Answer : C
A. They are parasitic forms which cause diseases in animals.
B. They have a protein rich layer called pellicle.
C. They have indestructible wall layer deposited with silica.
D. They are commonly called dinoflagellates.
Answer : C
45. Which of the following groups of protozoan is not correctly matched with its feature?
A. Amoeboid - Marine forms have silica shells on their surface.
B. Flagellated - Either free living or parasitic.
C. Ciliated - Actively moving organisms due to presence of cilia.
D. Sporozoans - ove and capture their prey with the help of false feet.
Answer : D
A. Amoeboid - Marine forms have silica shells on their surface.
B. Flagellated - Either free living or parasitic.
C. Ciliated - Actively moving organisms due to presence of cilia.
D. Sporozoans - ove and capture their prey with the help of false feet.
Answer : D
46. The most abundant prokaryotes helpful to humans in making curd from milk and in production of antibiotics are the ones categorised as
A. cyanobacteria
B. archaebacteria
C. chemosynthetic autotrophs
D. heterotrophic bacteria
Answer : D
A. cyanobacteria
B. archaebacteria
C. chemosynthetic autotrophs
D. heterotrophic bacteria
Answer : D
47. Bladderwort and Venus fly trap are examples of
A. insectivorous plants
B. parasitic plants
C. N2 rich plants
D. aquatic plants
Answer : A
A. insectivorous plants
B. parasitic plants
C. N2 rich plants
D. aquatic plants
Answer : A
48. Yeast is not included in protozoans but in fungi because
A. it has no chlorophyll.
B. some fungal hyphae grow in such a way that they give the appearance of pseudomycelium.
C. it has eukaryotic organization.
D. cell wall is made up of cellulose and reserve food material is starch.
Answer : B
A. it has no chlorophyll.
B. some fungal hyphae grow in such a way that they give the appearance of pseudomycelium.
C. it has eukaryotic organization.
D. cell wall is made up of cellulose and reserve food material is starch.
Answer : B
49. Lichens indicate SO2 pollution because they
A. show association between algae and fungi.
B. grow faster than others.
C. are sensitive to SO2.
D. flourish in SO2 rich environment.
Answer : C
A. show association between algae and fungi.
B. grow faster than others.
C. are sensitive to SO2.
D. flourish in SO2 rich environment.
Answer : C
50. Clamp connection is found in
A. basidiomycetes
B. ascomycetes
C. saccharomycetes
D. haplomycetes
Answer : A
A. basidiomycetes
B. ascomycetes
C. saccharomycetes
D. haplomycetes
Answer : A
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